Symlink attack due to predictable tmp folder names Affecting npm Open this link in a new tab package, versions [,1.3.3)


0.0
medium
  • Attack Complexity

    Low

  • User Interaction

    Required

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • snyk-id

    SNYK-DOTNET-NPM-60199

  • published

    13 Feb 2017

  • disclosed

    22 Apr 2014

  • credit

    Daniel Kahn Gillmor

How to fix?

Upgrade npm to version 1.3.3 or higher.

Overview

npm is a package manager for JavaScript. Affected versions of the package are vulnerable to Symlink attack due to predictable tmp folder names, which were named /tmp/npm-$PID. An attacker waiting for a process named npm- to load could then go to the folder and arbitrarily change the files in the tmp folder.